In article <5k9fqh$m2c at smc.vnet.net>, Dave Smith <buyguy at erols.com> wrote:
> Dear Newsgroup,
>
> I have Mathematica 3.0 installed on a Mac IIvx with a math coprocessor
> and System 7.5 with 20 MB RAM, but I'm interested in timing for other
> personal computing systems as well.
>
> I have tried to benchmark the time required for some common tasks to
> decide if this software in a personal computer environment can support
> a system dynamics and controls R&D consultancy.
>
> Here's what I found so far:
> NDSolve on a linear, 2nd order, time invariant equation takes 40
> seconds to compute 30 seconds of simulated time. Real system
> simulations are often nonlinear and of higher order. I have visions
> of this taking hours on my Mac, if it can be done at all.
> Neither Eliminate nor Solve can handle the mild, low-order
> nonlinear equations common in modeling gas turbines...no errors, no
> messages, they simply don't work. I'm also interested in robot
> manipulator dynamics, but these are more difficult yet so I'm not at
> all optimisitic.
I think timing[10001!][[1]] will take about 100 seconds on a IIcx
Todays machines are below 1 sec.
Power Tower Pro 225: 0.783 sec
Pentium pro 200(linux): 1.04 sec
Karl U.